GetPropList¶
Return a list of a certain type of published properties.
Declaration¶
Source position: typinfo.pp line 1174
function GetPropList(TypeInfo: PTypeInfo; TypeKinds: TTypeKinds;
PropList: PPropList; Sorted: Boolean=True) : LongInt;
function GetPropList(TypeInfo: PTypeInfo; out PropList: PPropList)
: SizeInt;
function GetPropList(AClass: TClass; out PropList: PPropList) : Integer;
function GetPropList(Instance: TObject; out PropList: PPropList)
: Integer;
Description¶
GetPropList stores pointers to property information of the class with class info TypeInfo for properties of kind TypeKinds in the list pointed to by Proplist. PropList must contain enough space to hold all properties.
The function returns the number of pointers that matched the criteria and were stored in PropList.
Errors¶
No checks are done to see whether PropList points to a memory area that is big enough to hold all pointers.
See also¶
| Name | Description |
|---|---|
| GetPropInfos | Return a list of published properties. |
| GetPropInfo | Return property type information, by property name. |
Example¶
Program example13;
{ This program demonstrates the GetPropList function }
uses
rttiobj,typinfo;
Var
O : TMyTestObject;
PT : PTypeData;
PI : PTypeInfo;
I,J : Longint;
PP : PPropList;
prI : PPropInfo;
begin
O:=TMyTestObject.Create;
PI:=O.ClassInfo;
PT:=GetTypeData(PI);
Writeln('Total property Count : ',PT^.PropCount);
GetMem (PP,PT^.PropCount*SizeOf(Pointer));
J:=GetPropList(PI,OrdinalTypes,PP);
Writeln('Ordinal property Count : ',J);
For I:=0 to J-1 do
begin
With PP^[i]^ do
begin
Write('Property ',i+1:3,': ',name:30);
writeln(' Type: ',TypeNames[typinfo.PropType(O,Name)]);
end;
end;
FreeMem(PP);
O.Free;
end.